因离子带有不同的电荷，纸张经过离子空间时，所带静电电荷的一部分会被中和，这样就达到了消除静电的目的。

Because the ions with different charge, the paper through the ion space, the part of the electrostatic charge will be neutralized, so that it can achieve the purpose of eliminating static electricity.

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在胶体中加入一些能够吸附在它上面的带相反电荷的分子，有时可以中和其电荷。

The charge on a colloid can sometimes be neutralized by addition of molecules of opposite charge which have the ability to absorb onto the colloid.

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脚手架搭设过程中和在管架上行走必须将安全带扣在设置好的横杆或生命线上。

During the scaffold erection and when walking on the pipe rack, safety harness must be secured to the life line on the Pope rack.

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